[cn555ic]

Teaser of atleast the single large turbo next to your car will be good enough to quite down the dis-believers! Pics or ban!

[Boost Gomez]

Subscribed.

[NM_BMW]

I'm guessing the turbo will be located where the stock snails are? I'm interested in this dual pump and 6 extra injectors. Is this going to require a fuel rail?

[bdkevoIX]

Originally Posted by unfor

I will post pictures once they fabricate the exhaust manifold gasket.

GT35R was too small for what the N54 is capable of making. We decided on a GT37 twin scroll turbo.

67mm compressor with divided housings doesn't really work well in evo platform, hence most go from 35r/divided to 40r/divided. Not sure how this will turn out in 3 liter.

It will be interesting!

What A/R turbine housing?

[unfor]

Originally Posted by Humtek

I'm guessing the turbo will be located where the stock snails are? I'm interested in this dual pump and 6 extra injectors. Is this going to require a fuel rail?

In the same vicinity, but not right there. Around there. You'll see some pictures later this week.

For fuel, its basically an intake manifold spacer, 1 inch long. It repositions the intake manifold location a bit, but its really worth it. It does require an additional fuel rail, but since 2 pumps will be run, its not an issue.

As far as injectors, to flow anywhere from 600-700rwhp, six 180 to 220 cc injectors approximately 20lb / injector are needed.

[TurboSid]

is the second pump going to be a more traditional inline fp? ie aeromotive/walbro

[Sniz]

Originally Posted by TurboSid

is the second pump going to be a more traditional inline fp? ie aeromotive/walbro

my 1st question

i'm running a beefy Walbro in my M3, I hope your not going with another HPFP in this thing......they literally suck.

best of luck, i'm watching this one!!! A real turbo at last.

are you going with a billet wheel?

[TurboSid]

if it is a more traditional fuel pump, i wonder how they will deal with the fact that the fuel pressure in the aftermarket unit will be much less than what the hpfp will be flowing at... isn't it like a few hundred psi (if that) in the traditional fuel pumps and 3000 in the hpfp?

[AltecBX]

What psi can you push with this turbo?
Is it safe to say you'll be putting down 540 hp?

I'm watching this ones well

[unfor]

Originally Posted by TurboSid

is the second pump going to be a more traditional inline fp? ie aeromotive/walbro

[Sniz]

Originally Posted by AltecBX

What psi can you push with this turbo?
Is it safe to say you'll be putting down 540 hp?

I'm watching this ones well

Probably around 35psi........but the turbo won't be the limiting factor here unlike the factory micro snails.

[TurboSid]

Originally Posted by AltecBX

What psi can you push with this turbo?
Is it safe to say you'll be putting down 540 hp?

I'm watching this ones well

if he's using a GT37r then its safe to say he's aiming for more power than 540. he can easily get away with a gt35r for 540hp duty.

[bdkevoIX]

once completed, this thing will have great response and mid-range in addition to nice top end.

I would've recommended a new BW S300 twin scroll. Not sure why bmw scene doesn't keep up with turbo technology.

67mm is good for ~700whp.
540hp can be obtained with 30r sized turbos.

[unfor]

The decision to use a GT37 was based on a few factors.

On a typical turbocharged car (BMW included with a factory tune), the car is at approximately 30% or less of the total load the engine can take. That's why bolt ons yield so much more horsepower in any factory turbocharged application.

GT37 was an easy choice. People are pushing what? 460rwhp with bolt ons? Adding a GT35r wouldn't push the BMW past those limits.

GT37r will.

[Sniz]

Originally Posted by unfor

The decision to use a GT37 was based on a few factors.

On a typical turbocharged car (BMW included with a factory tune), the car is at approximately 30% or less of the total load the engine can take. That's why bolt ons yield so much more horsepower in any factory turbocharged application.

GT37 was an easy choice. People are pushing what? 460rwhp with bolt ons? Adding a GT35r wouldn't push the BMW past those limits.

GT37r will.

you dont think a gt35r will go past 460whp w the appropriate fuel?

[bdkevoIX]

Originally Posted by unfor

The decision to use a GT37 was based on a few factors.

On a typical turbocharged car (BMW included with a factory tune), the car is at approximately 30% or less of the total load the engine can take. That's why bolt ons yield so much more horsepower in any factory turbocharged application.

GT37 was an easy choice. People are pushing what? 460rwhp with bolt ons? Adding a GT35r wouldn't push the BMW past those limits.

GT37r will.

37r is such an old turbo and doesn't flow that much than a 35r. And last time I checked, 35r was capable of 600whp.
How did you find a twin scroll housing on it? It must have been pretty difficult to find?

Either way, you are the first one to jump on the bandwagon, and its exciting to see what the outcome would be.

post some pics!

[unfor]

Originally Posted by Sniz

you dont think a gt35r will go past 460whp w the appropriate fuel?

I'm not saying it wouldn't. But if I wanted to push this N54 motor to its true potential, the GT37 will be a good choice.

[AltecBX]

Reason I was being conservative is because he never mentioned anything about the drivetrain. Would a stock 335i handle excess 650+ hp?

Originally Posted by Sniz

Probably around 35psi........but the turbo won't be the limiting factor here unlike the factory micro snails.

Wasn't these turbo being used in Evo's pushing around 22 psi? 35 psi seems kind of high

[unfor]

Don't worry about the drivetrain. That will be covered in this install as well.

[bdkevoIX]

Originally Posted by AltecBX

Reason I was being conservative is because he never mentioned anything about the drivetrain. Would a stock 335i handle excess 650+ hp?



Wasn't these turbo being used in Evo's pushing around 22 psi?

If you're referring to "37r" which is basically a precision 67mm, depending on the supporting modification, quality of parts and most importantly, the type of fuel used, you can go from 23psi-40psi+ on this turbo, making anywhere from ~4xxwhp-650whp. (roughly speaking)

Not bashing OP by any means on the turbo choice because 37r is still a great turbo. But personally, I would never go back to these conventional turbos, especially with more than a handful of great new turbos out in the market now with enhanced aerodynamics and materials that provide not only greater power output, but much better response.

HTA3582r,HTA3586r, 6262/6267, BW S300 airwerks are just a few examples.

[unfor]

Ok guys, I am heading off for the night.

I will do my best to post some pictures tomorrow.

[TurboSid]

PSI really tells us nothing. I'm just wondering more about fuel than anything else... I wonder if they're converting the entire system into a traditional fuel delivery system and just using dual high flow lpfp like Aeromotive A1000. I'm guessing this would require a lot of modification to the factory fuel lines and hardware... is it even possible?

If they could do this, he could run e-85 and have 12 injectors to supply all the fuel he'd need for that power. IF all that gets done (and thats a big IF) its just a matter of how long the stock open-deck motor will hold it all.